Re: Apply d799769188529abc6cbf035a10087a51f7832b6b to 5.17 and 5.15?

[Michael Ellerman <mpe@ellerman.id.au>]

Nathan Chancellor <nathan@kernel.org> writes:
> On Thu, Apr 21, 2022 at 05:46:52PM +1000, Michael Ellerman wrote:
>> Nathan Chancellor <nathan@kernel.org> writes:
>> > Hi Greg, Sasha, and Michael,
>> >
>> > Commit d79976918852 ("powerpc/64: Add UADDR64 relocation support") fixes
>> > a boot failure with CONFIG_RELOCATABLE=y kernels linked with recent
>> > versions of ld.lld [1]. Additionally, it resolves a separate boot
>> > failure that Paul Menzel reported [2] with ld.lld 13.0.0. Is this a
>> > reasonable backport for 5.17 and 5.15? It applies cleanly, resolves both
>> > problems, and does not appear to cause any other issues in my testing
>> > for both trees but I was curious what Michael's opinion was, as I am far
>> > from a PowerPC expert.
>> >
>> > This change does apply cleanly to 5.10 (I did not try earlier branches)
>> > but there are other changes needed for ld.lld to link CONFIG_RELOCATABLE
>> > kernels in that branch so to avoid any regressions, I think it is safe
>> > to just focus on 5.15 and 5.17.
>> 
>> I considered tagging it for stable, but I wanted it to get a bit of
>> testing first, it's a reasonably big patch.
>> 
>> I think we're reasonably confident it doesn't introduce any new bugs,
>> but more testing time is always good.
>> 
>> So I guess I'd be inclined to wait another week or so before requesting
>> a stable backport?
>
> Sure, thanks for the response! I'll ping this thread on Monday, May 2nd,
> so that we have two more RC releases to try and flush out any lingering
> issues. If you do receive any reports of regressions, please let me
> know.

Sounds good, thanks.

cheers